Retrieves a handle to the display monitor that has the largest area of intersection with the specified window
_WinAPI_MonitorFromWindow ( $hWnd [, $iFlag = 1] )
|$hWnd||A handle to the window of interest.|
|$iFlag||[optional] The flag that specifies the function's return value if the window does not intersect any display
monitor. This parameter can be one of the following values.
If the window is currently minimized, the function uses the rectangle of the window before it was minimized.
Search MonitorFromWindow in MSDN Library.